75365-71-8Relevant academic research and scientific papers
Synthesis and characterisation of mono- and binuclear palladium and platinum complexes with organochalcogenides
Singhal, Anshu,Jain, Vimal K.,Varghese, Babu,Tiekink, Edward R.T.
, p. 190 - 196 (2008/10/08)
Mononuclear palladium and platinum complexes of the type M(ER)2(P∩P) [M = Pd or Pt; ER = SPh, SC6H4Cl-4, SC6H4Me-4, SC6F5, SePh, TeC6H4OEt-4; P∩P = dppm or dppe] have been prepared and their ability to form dinuclear metal species has been demonstrated. All complexes have been characterised by multinuclear magnetic resonance (1H, 13C, 77Se, 195Pt) spectral data. The effects of phosphine ligands and organochalcogenides are reflected in the 77Se and 195Pt NMR shifts. The shielding of 195Pt NMR chemical shifts has been interpreted in terms of their binding ability to platinum. The structures of two derivatives, namely [Pd(SC6F5)2(dppe)] and [Pd(SePh)2(dppe)], have been established by X-ray crystallography. The palladium atom in each of the monomeric structures exists in a square planar geometry.
Synthesis of cis- and trans-bis(phosphine)bis(thiolato)platinum(II) complexes, (PR3)2Pt(SR′)2
Lai, Rabin D.,Shaver, Alan
, p. 477 - 480 (2008/10/08)
Complexes of the type L2Pt(SR)2 are isolated in high purity and yield by treating the cis-dichlorides with thiols under nitrogen atmosphere in the presence of triethylamine, L = PPh3, PMePh2, PMe2Ph, and 1/2(PPh2CH2)2, and R = CH2Ph, i-C3H7, n-C3H7, and 4-C6H4CH3. For R = alkyl the complexes have been assigned the cis geometry while for R = aryl they have been assigned the trans configuration on the basis of NMR studies. The cis-bis(thiolato) complexes tend to rearrange to a complex mixture of the trans complexes and other species upon exposure to air in solution. It is proposed that this surprising sensitivity accounts for the relative rarity of complexes of the type cis-L2Pt(SR)2 where L2 or the thiolato ligands are not chelates.
